I just remembered a code that one of my old nursing school buddies had. She was working as a CNA extern at a med center, which they will give nursing students who work for them as CNAs a semester of "prenursing school" training. Anyway, she was working on the skilled nursing floor and one of the docs who makes rounds there told her, "If you're ever in a code situation while you are an extern, don't leave the room. Just go stand in the corner of the room and observe what happens."
Well, a few days later as she was doing her VS rounds, a lady coded in front of her. She told me she hit the code button and then froze. She wasn't able to remember what to do next except go stand in the corner. So that's what she did, until the nurses and the code team got there. Then when one of them asked her to check for a radial pulse, she blanked out and said, "what's a pulse?".
Poor thing, she made it through school fine though

.